nautical scale

简明释义

海图比例尺

英英释义

例句

1.The nautical scale is crucial for determining the speed of the vessel during navigation.

在导航过程中，海洋比例尺对于确定船只的速度至关重要。

2.The map was drawn to a nautical scale, making it easier for sailors to navigate the waters.

这张地图是按照海洋比例尺绘制的，使得水手更容易在水域中航行。

3.Before setting sail, the captain checked the nautical scale on the chart to ensure accurate distances.

在出航之前，船长检查了图表上的海洋比例尺以确保距离的准确性。

4.Using a ruler, he measured the distance on the map according to the nautical scale.

他使用尺子根据海洋比例尺测量地图上的距离。

5.When planning the route, the crew referred to the nautical scale to avoid shallow waters.

在规划航线时，船员参考了海洋比例尺以避免浅水区。

作文

Navigating the vast oceans has always been a challenge for sailors and explorers. One of the essential tools that have evolved over centuries is the map, which allows navigators to plot their course accurately. Among the various types of maps used in maritime navigation, the concept of a nautical scale plays a crucial role. The nautical scale refers to the ratio between distances on a map and actual distances on the water. Unlike standard maps that use a linear scale, nautical charts are specifically designed to assist in maritime navigation, making it vital for sailors to understand how to interpret these scales correctly.The nautical scale is typically expressed in terms of nautical miles, where one nautical mile is equivalent to one minute of latitude. This measurement is particularly useful because it aligns with the Earth’s curvature, allowing for more accurate readings when navigating across large bodies of water. For instance, if a nautical chart indicates that two points are 5 inches apart on the nautical scale, and the scale states that each inch represents 10 nautical miles, then the actual distance between those two points would be 50 nautical miles. Understanding this conversion is critical for planning safe and efficient routes.Furthermore, the nautical scale can vary depending on the type of chart being used. For example, coastal charts may have a different nautical scale compared to offshore charts. Coastal charts often provide more detail and finer nautical scales to help navigate through intricate waterways, while offshore charts might cover larger areas with less detail. Sailors must be aware of these differences to avoid potential hazards and ensure they are navigating safely.In addition to understanding the nautical scale, sailors also need to consider other factors such as tides, currents, and weather conditions. These elements can significantly affect navigation and the actual distance traveled. For instance, strong currents can either aid or hinder a vessel's progress, making it essential to adjust calculations based on the nautical scale accordingly. Accurate navigation is not just about measuring distance; it requires a comprehensive understanding of all variables at play.Moreover, technology has greatly enhanced the way navigators utilize the nautical scale. With the advent of GPS and electronic charting systems, sailors can now easily calculate distances and plot courses with remarkable precision. However, it remains crucial for mariners to have a solid grasp of traditional navigation methods, including the nautical scale, as a backup in case of technological failures.In conclusion, the nautical scale is an indispensable aspect of maritime navigation that enables sailors to traverse the seas with confidence. By understanding how to read and apply the nautical scale, navigators can ensure safe passage, effectively plan their routes, and respond appropriately to changing environmental conditions. As technology continues to evolve, the fundamental principles of navigation, including the nautical scale, remain timeless and vital for all who venture into the deep blue sea.

航行于广阔的海洋一直是水手和探险者面临的挑战之一。在几个世纪的发展过程中，地图成为了一个重要的工具，它使导航员能够准确绘制航线。在各种用于海洋导航的地图中，海图比例尺的概念起着至关重要的作用。海图比例尺是指地图上的距离与水上实际距离之间的比例。与使用线性比例尺的标准地图不同，海图专门设计用于协助海洋导航，因此水手理解如何正确解读这些比例尺至关重要。海图比例尺通常以海里为单位，其中一海里等于一分纬度。这种测量方式特别有用，因为它与地球的曲率相一致，使得在大面积水域导航时可以进行更准确的读数。例如，如果一张海图显示两个点在海图比例尺上相距5英寸，而比例尺说明每英寸代表10海里，那么这两个点之间的实际距离将为50海里。理解这一转换对于规划安全高效的航线至关重要。此外，海图比例尺可能因使用的图表类型而异。例如，沿海图表的海图比例尺可能与远海图表不同。沿海图表通常提供更多细节和更精细的海图比例尺，以帮助在复杂水道中导航，而远海图表可能覆盖更大区域但细节较少。水手必须意识到这些差异，以避免潜在的危险并确保安全航行。除了理解海图比例尺外，水手还需要考虑潮汐、洋流和天气等其他因素。这些因素会显著影响导航和实际行驶的距离。例如，强劲的洋流可以促进或阻碍船只的进展，因此根据海图比例尺调整计算至关重要。准确的导航不仅仅是测量距离；它需要全面理解所有相关变量。此外，科技极大地增强了导航员利用海图比例尺的方式。随着GPS和电子图表系统的出现，水手现在可以轻松地计算距离并以惊人的精确度绘制航线。然而，对于水手来说，掌握传统导航方法，包括海图比例尺，作为技术故障时的备份依然至关重要。总之，海图比例尺是海洋导航中不可或缺的一个方面，使水手能够自信地穿越海洋。通过理解如何阅读和应用海图比例尺，导航员可以确保安全通行，有效规划航线，并适应不断变化的环境条件。随着科技的不断发展，导航的基本原则，包括海图比例尺，仍然是永恒的，对所有冒险进入深蓝海洋的人来说至关重要。